Compilare: main.cpp: In member function 'numar_mare numar_mare::operator+(numar_mare)': main.cpp:36:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0,t = 0; i<b.v.size(); i++) ~^~~~~~~~~~~ main.cpp:44:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i == b.v.size()-1 && t > 0) ~~^~~~~~~~~~~~~~~ main.cpp: In member function 'void numar_mare::Afisare()': main.cpp:77:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<v.size(); i++) ~^~~~~~~~~